Casalonga UPC rules of procedure
Powered by Casalonga
Version: 20 June 2013

ARTICLE 55Reversal of burden of proof

(1) Without prejudice to Article 24(2) and (3) [1], if the subject-matter of a patent is a process for obtaining a new product, the identical product when produced without the consent of the patent proprietor shall, in the absence of proof to the contrary, be deemed to have been obtained by the patented process.

(2) The principle set out in paragraph 1 shall also apply where there is a substantial likelihood that the identical product was made by the patented process and the patent proprietor has been unable, despite reasonable efforts, to determine the process actually used for such identical product.

(3) In the adduction of proof to the contrary, the legitimate interests of the defendant in protecting its manufacturing and trade secrets shall be taken into account.
Please login to continue reading.

Registering with the site

You have requested to take part in a forum reserved for registered visitors.

Personal identifiers

Enter your personal information here. You will receive a registration confirmation shortly by email. Such email may have been considered as spam. If you do not find it in your inbox nor in your spam, please send an email to

(Your password must contain at least 6 characters.)

Required fields are indicated with a « * »

New visitor ?


(2) To the extent that the Court shall base its decisions on national law, including where relevant the law of non-contracting States, the applicable law shall be determined:
(a) by directly applicable provisions of Union law containing private international law rules, or
(b) in the absence of directly applicable provisions of Union law or where the latter do not apply, by international instruments containing private international law rules; or
(c) in the absence of provisions referred to in points (a) and (b), by national provisions on private international law as determined by the Court.
(3) The law of non-contracting States shall apply when designated by application of the rules referred to in paragraph 2, in particular in relation to Articles 25 to 28, 54, 55, 64, 68 and 72.